19957220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1811}}^1$

素因数の和:1868

約数の個数: 48

約数和(自身を含む): 45662400

約数和(自身を除く): 25705180

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1811, 2204, 2755, 3622, 5510, 7244, 9055, 11020, 18110, 34409, 36220, 52519, 68818, 105038, 137636, 172045, 210076, 262595, 344090, 525190, 688180, 997861, 1050380, 1995722, 3991444, 4989305, 9978610, 19957220]

約数ペア:

[(1, 19957220), (2, 9978610), (4, 4989305), (5, 3991444), (10, 1995722), (19, 1050380), (20, 997861), (29, 688180), (38, 525190), (58, 344090), (76, 262595), (95, 210076), (116, 172045), (145, 137636), (190, 105038), (290, 68818), (380, 52519), (551, 36220), (580, 34409), (1102, 18110), (1811, 11020), (2204, 9055), (2755, 7244), (3622, 5510)]